//
//  WelcomeViewController.swift
//  01- 搭建框架
//
//  Created by apple on 15/10/19.
//  Copyright © 2015年 任伟. All rights reserved.
//

import UIKit
import SDWebImage

class WelcomeViewController: UIViewController {

    override func loadView() {
        view = backImageView
        
        setupUI()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // 异步加载头像
        iconView.sd_setImageWithURL(UserAccountViewModel.sharedUserAccount.avatarUrl, placeholderImage: UIImage(named: "avatar_default_big"))
        
    }
    
    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        
        iconView.snp_updateConstraints { (make) -> Void in
            make.bottom.equalTo(view.snp_bottom).offset(-view.bounds.height + 200)
        }
        
        UIView.animateWithDuration(1.0,
            delay: 0,
            usingSpringWithDamping: 0.8,
            initialSpringVelocity: 5,
            options: [],
            animations: { () -> Void in
                
                self.view.layoutIfNeeded()
                
            }) { _ in
                UIView.animateWithDuration(0.8, animations: {
                    
                    self.welcomeLabel.alpha = 1
                    
                    }) { _ in
                        print("OK")
                        
                        
                        //发出通知
                        NSNotificationCenter.defaultCenter().postNotificationName(WBSwitchRootViewControllerNotification, object: nil)
                }
        }
    }

    /// MARK: -懒加载控件
    /// 背景图像
    private lazy var backImageView: UIImageView = UIImageView(imageName: "ad_background")
    
    /// 默认头像
    private lazy var iconView: UIImageView = {
    
        let iv = UIImageView(imageName: "avatar_default_big")
        
        iv.layer.cornerRadius = 45
        iv.layer.masksToBounds = true
        
        return iv
    }()
    
    ///欢迎标签
    private lazy var welcomeLabel: UILabel = UILabel(title: "欢迎回来", fontSize: 17)
}

/// MAKE: -设置子控件界面
extension WelcomeViewController {
    
    private func setupUI() {
        
        // 添加控件
        view.addSubview(iconView)
        view.addSubview(welcomeLabel)
        
        // 自动布局
        iconView.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(view.snp_centerX)
            make.bottom.equalTo(view.snp_bottom).offset(-200)
            make.width.equalTo(90)
            make.height.equalTo(90)
        }
        
        welcomeLabel.snp_makeConstraints { (make) -> Void in
            make.centerX.equalTo(iconView.snp_centerX)
            make.top.equalTo(iconView.snp_bottom).offset(16)
        }
    }
}
